Sload — Office (OLE) malware analysis

Static analysis result for SHA-256 cf0bbe8763fde47f…

MALICIOUS

Office (OLE)

93.9 KB Created: 2018-10-05 08:20:00 Authoring application: Microsoft Office Word First seen: 2018-10-13
MD5: a4b6fe9d6b9a125293f5eb8445e0123d SHA-1: 61995a8a5059f6d86caf208d1bcf7dbe1014f9d5 SHA-256: cf0bbe8763fde47f9e7fb916576cf8f544360d0a5f37bd42e40327efccfca5e8
64 Risk Score

Malware Insights

Sload · confidence 85%

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The file was detected by ClamAV as Doc.Downloader.Sload-6794696-0, indicating it functions as a downloader. Although VBA macros could not be extracted due to an unsupported format, the presence of an embedded URL and the ClamAV signature strongly suggest the document's purpose is to download and execute a secondary payload. This aligns with the typical behavior of the Sload family.

Heuristics 3

  • ClamAV: Doc.Downloader.Sload-6794696-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Sload-6794696-0
  • Unsupported Office format for VBA extraction info OFFICE_FORMAT_UNSUPPORTED
    olevba could not extract VBA macros (AssertionError); format-agnostic byte-level scans still ran. Likely legacy, encrypted, or malformed OLE/OOXML — re-scanning the same bytes will yield the same outcome.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://schemas.openxmlformats.org/drawingml/2006/main In document text (OLE body)

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